Renderman for Houdini 24.0 RIS Incompatible?, Houdini 18.5.596, Files Render to Disk But Tasks do not Complete

This is troubling, because we still have no good solution for this problem.
Im on similar configuration, except Python2. Same error occurs whenever I send Houdini jobs to Deadline, even if job completes successfully.

Error: TypeError("'NoneType' object is not callable",) in <bound method TxManager.__del__ of <rman_utils.txmanager.core.TxManager object at 0x000000005E708C88>> ignored